RSV:=(HHV(HIGH,9)-CLOSE)/(HHV(HIGH,9)-LLV(LOW,9))*100;LWR1:=SMA(RSV,3,1);LWR2:=SMA(LWR1,3,1);ychjx:=(LWR2-REF(LWR2,1));威廉差值:ychjx;